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A paper published today in Geophysical Research Letters shows the mythical "hot spot" in the upper troposphere predicted by climate models is indeed still missing. The paper shows little change in the upper tropospheric temperature measured by radiosondes and satellites from 1979-2011, while climate models instead predicted a significant increase over the same period.

The paper confirms others showing that the so-called "fingerprint" of man-made global does not exist and therefore the computer models are based upon incorrect assumptions.

» How much "Man Made" CO2 Is In The Earth's Atmosphere?
I think ALL of the CO2 in the Earth's Atmosphere is from man.
I'm not sure how much "Man Made" CO2 is in the Earth's Atmosphere.
There is .04% CO2 in the Earth's Atmosphere and of that "Man" has added an extra 4% (1 part in 62,500)